Finding the Fourth Proportional to 660,883.53, 912,064.34 and 374,405.97
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Solution
The fourth proportional to 660,883.53, 912,064.34 and 374,405.97 is: 516,705.77
Step by Step Solution
- Step 1: Write the proportion equation
660,883.53 : 912,064.34 = 374,405.97 : x - Step 2: Convert to fraction form
660,883.53/912,064.34 = 374,405.97/x - Step 3: Cross multiply
660,883.53x = 912,064.34 × 374,405.97 - Step 4: Simplify right side
660,883.53x = 341,482,334,856.13 - Step 5: Solve for x
x = 341,482,334,856.13/660,883.53 - Step 6: Final answer
x = 516,705.77
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.